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Day 2 – Classification of Aerosols

Day 2 – Classification of Aerosols. SEM images: Swarup China, MTU. Find the elevation of Pico Mountain. 2,351 meters (7,713 feet) Where is Pico Mountain located? Located on the island of Pico Island archipelago of the Azores

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Day 2 – Classification of Aerosols

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  1. Day 2 – Classification of Aerosols SEM images: Swarup China, MTU

  2. Find the elevation of Pico Mountain. • 2,351 meters (7,713 feet) • Where is Pico Mountain located? • Located on the island of Pico • Island archipelago of the Azores • Islands lie along the Mid Atlantic Ridge on 3 separate plates in the North Atlantic • Describe the mountain. • Stratovolcano • Piquinho • Caldera (summit crater) Answers to yesterday’s questions Photo: www.worldatlas.com Photo: L. Harkness

  3. What is the boundary layer in terms of the atmosphere? • The first cloud layer • What is the free troposphere? • Air above the first cloud layer (boundary layer) • What is the altitude of the marine boundary layer? • 1200 – 1600 meters Answers to yesterday’s questions

  4. Based on the answers, why is Pico Mountain a good place to study the atmosphere? Answers to yesterday’s questions

  5. What is an aerosol?How are aerosols classified? The ICO and samplers at sunset. Photo: L. Harkness

  6. Aerosol: small particles in the air; can be white, gray, or brown in color • Soot: organic aerosol particles • Dust:mineral particles • Morphology: study how the aerosol changes in the atmosphere What is an aerosol?

  7. Short Range Transport: local pollution; stays below the boundary layer (out of the free troposphere) • Long Range Transport: propelled into the free troposphere; can travel long distances • Ex: North America to Europe • What scientists are looking at on Pico Two ways aerosols are transported:

  8. www.intechopen.com

  9. Briefly describe how aerosols are collected. • Describe differences between collection for SEM and TEM. Video Notes:

  10. Video: Collecting aerosols in the ICO Click here for the video!! Video: L. Harkness

  11. Dust or Soot? Today’s Task: For each aerosol particle image, classify as either soot or dust. Spherical Particles = soot Irregular Particles = dust SEM Images: S. China, MTU

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